Troubleshooting
Digital PRIORIS ZX Server
86
MCS Logistics Engineering - Nijmegen
Memory Map
(continued)
Address Range (hex)
Amount
Function
C000_0000–C1FF_FFFF
32 MB
Memory mapped math
coprocessor
C200_0000–FEBF_FFFF
944 MB
EISA memory or I/O slave
memory
FEC0_0000–FEC0_0FFF
4 KB
I/O APIC #1
FEC0_1000–FEC0_1FFF
4 KB
I/O APIC #2
FEC0_2000–FEC0_2FFF
4 KB
I/O APIC #3
FEC0_3000–FEC0_3FFF
4 KB
I/O APIC #4
FEC0_4000–FFDF_4FFF
32 752 KB
EISA memory or I/O slave
memory
FFE0_0000–FFFF_FFFF
32 KB
EISA (BIOS/SCU)
I/O Map
I/O Address(es)
Resource
0000–001F
DMA controller 1
0020–0021
Interrupt controller 1
0022–0023
EISA bridge configuration space access ports
0024–0025
AIP configuration space access ports
0026–0027
Configuration space access ports
0040–005F
Programmable timer
0060, 0064
Keyboard controller
0061
NMI status and control register
0070
NMI mask (bit 7) and RTC address (bits 6:0)
0071
Real-time clock (RTC)
0080–008F
DMA low page register
0092
System control port A ( PC-AT control port)
00A0–00BF
Interrupt controller 2
00C0–00DF
DMA controller 2
00F0
Clear NPX error
00F8–00FF
x87 numeric co-processor
0102
Video display controller
0170–0177
Secondary hard disk controller (IDE)
01F0–01F7
Primary hard disk controller (IDE)
0200–0207
Game I/O port
0220–022F
Serial port
0238–023F
Serial port
0278–027F
Parallel port 3
02E8–02EF
Serial port 2
02F8–02FF
Serial port 2
0338–033F
Serial port 2
0370–0375
Secondary diskette drive
